On the day safety Antrel Rolle was carted off the Giants’ practice field with a sprained right ankle, cornerback Terrell Thomas took another step in his attempted comeback.

Thomas, after a long wait, got the green light to increase his workload. For the first time in training camp, he got some snaps on defense in the team periods. It represents another positive development for Thomas, who is attempting to come back from two reconstructive ACL surgeries to his right knee in the past year.

“He seemed to do OK with [the increased workload], too,’’ coach Tom Coughlin said. “So hopefully that’ll give him some confidence, he’ll take some more. It’s time for all these guys that have been in this other category to get moving.’’

On one play, Thomas lined up in the slot covering Victor Cruz and appeared to handle the assignment without any issue. Thomas began camp on the physically unable to perform list because of a strained hamstring and the Giants are being cautious with him, given that he re-tore his ACL last summer, possibly because he was too aggressive with his return to the field.

* Cruz said his main point of emphasis this summer is better concentration when the ball is coming his way.

“I think even out here on the practice field I’ve been training myself to look the ball all the way in, whether I’m in traffic or getting to the ball late or see it late,’’ Cruz said. “I’m just looking it all the way into my hands and then making the move later. I think a lot of my drops were me trying to make a move before I actually caught the football. Now I just want to focus on catching the ball first, looking it all the way in, and then taking it from there.’’

* Gilbride said what everyone had noticed about second-year WR Rueben Randle: “He’s light years from where he was last year.’’ … Rookie DE Damontre Moore did not practice because of a shoulder contusion he suffered during the preseason victory in Pittsburgh, a game in which Moore played exceedingly well. CB Corey Webster (soreness) also did not practice and WR Jerrel Jernigan (soreness) was held out. RB Ryan Torain (concussion) returned, but OL James Brewer (concussion) remained out. … RG Chris Snee got added work with the starting offensive line as he increases his reps following offseason hip surgery.

* DE Justin Tuck returned after missing two practices last week and the preseason opener with stiffness in his back. Tuck appeared to be limited as he participated in a handful of plays. … WR Kris Adams was waived/injured after fracturing his left leg against the Steelers. WR Marcus Henry (Murray State) was signed to replace Adams on the roster. In 2012, Harris played for Iowa in the Arena League and Omaha in the UFL.